Build releases with github actions

Author: KCodeYT

.github/workflows/release.yml

@@ -0,0 +1,72 @@
+name: Release this plugin
+
+on:
+  push:
+    branches: [ release ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout github repository
+      uses: actions/checkout@v3
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: maven
+
+    - name: Clone PowerNukkitX
+      uses: sudosubin/git-clone-action@v1.0.1
+      with:
+        repository: PowerNukkitX/PowerNukkitX
+        ref: master
+        path: PowerNukkitX
+
+    - name: Build PowerNukkitX
+      run: cd PowerNukkitX && mvn install
+
+    - name: Upload PowerNukkitX as artifact
+      uses: actions/upload-artifact@v3.0.0
+      with:
+        name: PowerNukkitX
+        path: PowerNukkitX/target/powernukkitx-1.6.0.0-PNX-SNAPSHOT-shaded.jar
+
+    - name: Get name and version from pom.xml
+      run: |
+        VER=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
+        echo "VER=$VER" >> $GITHUB_ENV
+        NAME=$(mvn help:evaluate -Dexpression=project.artifactId -q -DforceStdout)
+        echo "NAME=$NAME" >> $GITHUB_ENV
+
+    - name: Build plugin
+      run: mvn package
+
+    - name: Delete old release
+      uses: dev-drprasad/delete-tag-and-release@v0.2.0
+      with:
+        delete_release: true
+        tag_name: ${{env.VER}}
+      env:
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+
+    - name: Create Release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+      with:
+        tag_name: ${{env.VER}}
+        release_name: PlotPlugin v${{env.VER}}
+
+    - name: Upload plugin as release
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+      with:
+        upload_url: ${{steps.create_release.outputs.upload_url}}
+        asset_path: target/${{env.NAME}}-${{env.VER}}.jar
+        asset_name: PlotPlugin.jar
+        asset_content_type: application/java-archive